Subclass Avialae Gauthier, 1986 see Clade Avialae Gauthier 1986
   Infraclass Aves Linnaeus, 1758 see Subclass Aves Linnaeus, 1758
     Parvclass Neornithes Gadow, 1893 see Subclass Neornithes Gadow, 1893
       Cohort Neognathae Pycraft, 1900
         Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
           Superorder Galloanserimorphae Sibley, Ahlquist & Monroe Jr., 1988
             Order Anseriformes Wagler, 1831 - waterfowl and screamers
               Suborder Anseres Linnaeus, 1758 - waterfowl
                 Superfamily Anatoidea Vigors, 1825
                   Family Anatidae Vigors, 1825 - ducks, geese, swans
                     Subfamily Anserinae Vigors, 1825 - geese